DTC B1001 Option Configuration Error. Chevrolet PJJ 2000

For 1990-2009 cars

### Circuit Description

The instrument panel cluster (IPC) performs a diagnostic self-test when the ignition switch is turned on. If the IPC senses a malfunction, this DTC will be stored.

### Conditions for Running the DTC

The ignition switch is turned on.

### Conditions for Setting the DTC

Any of the following conditions will set this DTC:

• | The IPC part number does not match the part number stored in the body control module (BCM) memory.

• | The IPC model type does not match the type stored in the BCM memory.

• | The IPC vehicle identification number (VIN) does not match the VIN stored in the BCM memory.

### Action Taken When the DTC Sets

The SERVICE VEHICLE SOON indicator will illuminate if possible.

### Conditions for Clearing the DTC

• | A current DTC B1001 will clear when a properly operating IPC is installed.

• | A history DTC will clear if the condition is no longer present after 100 ignition cycles with no current DTCs within the 100 ignition cycles.

• | Use a Scan Tool.

### Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

1. If DTC B1001 is set as current, replace the instrument cluster.

Step | Action | Yes | No
--- | --- | --- | ---
1 | Did you perform the Instrument Cluster Diagnostic System Check? | Go to Step 2 | Go to A Diagnostic System Check - Instrument Cluster
2 | Perform the setup procedure for the body control module. Refer to BCM Programming/RPO Configuration in Body Control System. Does the DTC reset? | Go to Step 3 | System OK
3 | Replace the instrument cluster. Refer to IP Cluster Replacement. Did you complete the replacement? | System OK | --